When the channel topic is set without specifying a sender, Irssi before 1.0.6 may dereference a NULL pointer.
{ "binaries": [ { "binary_version": "0.8.15-5ubuntu3.4", "binary_name": "irssi" }, { "binary_version": "0.8.15-5ubuntu3.4", "binary_name": "irssi-dev" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_version": "0.8.19-1ubuntu1.6", "binary_name": "irssi" }, { "binary_version": "0.8.19-1ubuntu1.6", "binary_name": "irssi-dev" } ], "availability": "No subscription required" }